Drilling-machine.



No. 699,I22. Patented Apr. 29, |902.

' D. WARNER.

DBILLING MACHINE.

Appxication med Feb, 25, 1901.)

- (No Model.) 2 Sheets-$heet I.

#Milli-Ml Patented Apr. 29, |902;

D. WARNER.

DRILLING MACHINE.

.(Applikcation led Feb. 2:5, 1901.)

v2 Sheets-Sheet 2.

(No Model.)

Wr/Ze?) 514,1; evi/toc THE Nonms vzrzRs 1:0.4 Phorouwo.. wAsHmmoN, n c.

NITED STATES PATENT OFFICE.

DANIEL WARNER, OF BRONSON, MICHIGAN, ASSIGNOR OE ONE-HALF TO JANE W. STONE, OF BROOKLYN, NEW YORK.

DRlLLlNG-MACHINE. g

-SPEGXFICATIJIOIW` forming part of Letters Patent No. 699,122, dated April 29, 1902.

V Application tiled February 25, 1901. Serial No.481818. (No model.)

To all whom ttm/ty concern.'

Be it known thatLDANIEL WARNER, acitizen of the United States, residing at Bronson, in the county'of Branch and State of Michigan, haveinvented a new and useful Drilling- Machine, of which the 'following is a specifi-4 cation.

This invention relates to well-drilling machines embodying adrill of the duplex type, consisting'of inner and router concentric drill members.` c Y y The object of-t-heinvention is to lequip the machine with 'simple and eifective mechan-'g ism for elfecting the simultaneous reciproca-j tion o f the drill members in opposite direc-Q tions and Yto impart a rotary movement to the', inner drill member during the reciprocation'A thereof in order that said innerdrill member may be constituted by'a twist-drilll A further object ofthe invention 1s to util-vv ize a single walking-beam for the simultaneous opposite reciprocation of the drill members through the medium of a pair of independent cables, the walking-beam being oscillated by the mechanism employedto rotate the inner drill member.

Tothe accomplishmentV of the foregoing objects and others subordinate thereto the invention consists in a' drilling-machine em.

bodying certain novel features and details'of construction and arrangement of parts,as'

drawings, and incorporated in the claims".

Ink the accompau yin gldrawings, Figure lis; a side elevation of a drilling-machine completeconstructed in accordance with the pres-f ent invention, showingboth cables connected' to the walking-beam. l Fig.` 2 is an elevation taken at right angles to Fig. 1. Fig. 3 is anl enlarged section taken longitudinally of the main driving-shaft and extendingv through the main platform, one of the( cables being wound upon the main shaft in dotted lines. Fig. 4 is a sectional plan view of the parts shown in Fig. 3. "Fig 5 is a side elevation of the lower portion of thestand showing a modification in the driving mechanism for the inner and outer members. Fig. 6 is an enlarged detail elevation of the inner and outer drill members, showing the lifting-bail for the outer drill member and the inner member constructed in the form ofa twist-drill. Fig. 7 is an enlarged detail vertical section showing other forms of inner, and outer drill mem- Fig. Sis a detail vien1 of one end of the walking-beam. f

1 i Similar n u meralsofreference designate corresponding parts in all the figures of the drawings. I f' The drilling-machine contemplated in this invention is especially designed with, referenceto the drilling bof gas and'oilwells, and comprises a portable stand, which' may be vcarried from place to place and mounted at the point where the well is to be drilled. The

stand, which is bestillustrated in Figs. 1 and 2, comprises a main platform l, which is supported at a suitable elevation above the grou nd by means of corner-.posts 2, connected at their lower ends to a suitable base-frame 3 and braced at intermediate points in their height by means of cross-bars 4 and 5. EX- tending upward from the platform 1 are other posts 6, connected at their top to a second smaller platform r/',which is bolted to the upper ends of the posts and supported solely thereby. The posts 6 are braced at points intermediate of their length by means of suitable cross-bars V8,and these cross-bars are also arranged to sup-v ,port a central cross-bai 9, which is provided with anopeningtoforma guide for the shaft 10 of the drill. Another'bearingll isprovided hereinafter fully described, illustrated in the f for"saidlshaftVwhich last-named bearing is `connected with" the lower main platform 1, while resting upon the bearing 11 is a bevelpinion 12 having an internal feather or spline "gtoengagera groove 13, exten'din'glgllggitndinally of thc drill-shaft 10, so astopermit the shaft to be raised and loweredthron'gh the bevel-pinion 12, while at the same Ltimethe said shaft andbevel-pinion are caused to rotate together., g The drill-shaft 10 will in practice be composed of a number of sections having a screw-'threaded engagement with each other, so that they may be connected andfdisconnected according to the depth of the well and so that additional sections'may'be added from time to time as the depth ofwthe well increases. This feature is so well' understood in the art that no illustration thereof is deemed necessary, although by reference to Fig. 6 it will be seen that I have illustrated the shaft 10 as provided in its lower end with a socket to receive a threaded shank 14 on the contiguous end ofthe next lower section 15, which in said ligure constitutes the inner member of the drill. By unscrewing the drill 15 an additional shaft-section may be applied to the shaft 10 and the drill subsequently attached to the added section in a manner that will be readily understood.

The drill is of a duplex character, comprising an inner drill member 15 and an outer drill member 16. 'Fliese drill members are arranged concentrically with relation to each other and are adapted to have independent movement, the outer member 16 beingin the nature of a sleeve or jacket which surrounds the inner member 15 and allows the inner member to reciprocate and revolve without aecting the outer member and while the latter is itself being reciprocated by the operating devices hereinafter described.

In Fig. 6 the inner member is shown as consisting of an ordinary twist-drill having the spiral cutting portion 17, the said drill being adapted to operate both as a thrust and rotary drill. In the same iigure the outer drill member is shown to consist of a sleeve of uniform diameter, having its lower end provided with cutting-teeth 1S, which operate outside of and around the inner drill member. The inner drill member is connected directly to the main drill-shaft 10, while the outerdrill member is connected to an operating-cable 19, which is moved upward and downward by mechanism hereinafter referred to, thereby imparting a corresponding upward and downward reciprocating movement to the drill member 16. In order to connect the cable 19 to the outer drill member, the latter is provided with a bail-shaped loop 20, pivotally connected at 21 to the upperend of the outer drill member, as shown in Figs. 1, 5, and 6, the said loop being arranged to slide along the shaft of the inner drill member.

In Fig. 7 I have shown an inner drill member adapted especially for a reciprocatory or driving movement, the said drill member having a cutting head or bit 22, which is received in an enlarged jacket 23, forming the lower end of the outer drill member, the latter being also provided with a guide-sleeve 24, through which the shank 25 of the inner drill member passes.

The mechanism forimpartingindependent movements to the inner and outer drill members comprises, essentially, a main drivingshaft 26, mounted in suitable bearings 27 on the platform 1 and having fast thereon at one end a bevel gear-wheel 28,wh ich meshes with the bevel-pinion l2 to im part a rotary movement to the drill-shaft 10. Intermediate its ends the shaft 26 is provided with a belt-pulley 29 to receive a driving-belt from any suitable motor, and at its opposite end Said shaft is provided with a bevel-pinion 30, which meshes with a bevel gear-wheel 31 on the end of a counter-shaft 32, mounted in bearings 33 on the platform 1 and extending at right angles to the main driving-shaft 26, as shown in Fig. 4. Mounted loosely upon the shaft 32 is a belt-pulley 34, adapted to be thrown into and out of engagement with the shaft 32 by means of a shiftable clutch-collar 35, splined to the shaft 32 and adapted to be moved by a shift-lever 36. The pulley 34 receives a belt 37, which passes around another pulley 38 on a shaft 39, mounted in suitable brackets 40 and arranged beneath the platform 1, said shaft having fast thereon a drum 41, upon which is wound the cable 19, which connects with and serves to operate as well as raise and lower the outer drill member 16.

Located beneath the platform 1 is a walking-beam 42, fulcro med intermediate its ends at 43 in brackets 44, the said walking-beam having pivotallyconnected thereto at one end an operating-link or pitman 45, which counects with a wrist-pin 46 on the bevel gearwheel 31, wherebyin the rotation of said gearwheel an oscillatory movement is imparted to the walking-beam 42. Said walking-beam is provided at or near its other end with a clamp or cable-grip 47, (see Fig. 8,) by means of which the cable 19, connected to the outer drill member, may be securelyand adjustably attached to the walking-beam at any point in the length of the cable. The said walkingbeam is also provided with an additional cable-grip 48 for receiving and holding another independent cable 49, which extends upward through an opening 50 in the platform 1 and passes over a guiding-sheave 5l, mounted in bearing-brackets 52 on the upper platform 7, the said cable passing downward through an opening 53 in the platform 7 and connecting with a swivel-head 54, connected to the upper extremity of the drill-shaft 10. In view of the fact that both of the cables 19 and 49 of the drill members are connected to the same end of the walking-beam 42 and that the cable 49 is doubled around the sheave 51 it will be seen that the inner and outer drill members will be simultaneously reciprocated in opposite directions, the inner drill member descendingas the outer drill memberlascends, and Vice versa. At the same time that the inner drill member is reciprocated it is also rotated within the outer drill member, thus facilitating the cutting operation, and by reason of the outer drill member operating independently of the inner drill member it serves to cut around the inner drill member and also to clean the inner drill member and free it from adhering material. Thus it will appeal' that the inner drill member is simultaneously reciprocated and rotated and that the outer drill member is simultaneouslyreciprocated. The special utility of this arrangement is that the rotation of the inner drill member effects the boring of a hole, and as the drill proceeds the reciprocation of the outer drill member breaks away the edges of the hole thus formed, but does so after the inner drill member is elevated out of the hole and at a time when IOO IIO

drill member is thrust -forward to break downthe unsupported cavity-walls.

When it is desired to elevate or lower the main drill-shaft 10, the cable 49 is discon-f nected from the walking-beam and the end* thereof passed through an opening in the main driving-shaft 26, after which by starting the engine and'rotating the shaft 26 the cable- 49 will be wound thereon in the manner illustra'ted in dotted lines in-Fig. 3, thus raising the inner drill bodily. Likewise in order to raise and lower the outer drill member 16 the` cable 19 is disconnected from the Walkingbeam, and by shifting the clutch-collar 35v the driving-pulley 34 is caused to actuate the belt`37 and pulley 38, thereby winding or unwindingthe drum 4land operating upon the cable 19, with the effect that the outer drill member 16 will be raised or lowered according to the direction of rotation of the drum.

VWhen it is desired to operate the inner drill memberwith a rotaryaction only, the cable 49 may loe-left disconnected from both the walking-beam and the main driving-shaft 26,

thereby allowing the drill toremain at'the bottom of the well, where i-t will be rotated by the gearing hereinabovedescribe'd. In conjunction with such rotarydrill-the outer drill'member may be employed and caused -to reciprocate. by the means referred to, thus facilitating the drilling action'and materially assisting `the inner drill member by keeping the latter clean and breaking up the mate'- rial at the point where the inner drill meinber is operating. Y

In Fig. 5 I have illustrated another form of mechanism for imparting reciprocatory movementssimultaneously to the outer and inner drill members in different directions without imparting a rotary motion to the inner drill member. Under the arrangement illustrated in Fig. 5 the walking-beam 42 is fulcrumed about centrally, and the operating cables 19 and 49 are connected, respectively, to the opposite ends of '.the walking-beam, the said cables being guided at intermediate points in their lengthbyl means of-guiding sheavesor pulleys 56, journaled in any suit"- able manner upon the machine-frame. As the Walking-beam is vibrated by the connecting-rod 45, one of the drill members will be lifted while the other is dropped, and movement will be'simultaneouslyimparted to the two drill lmembers in' opposite directions. Any suitable meansv may be provided for lengthening the cables 19 and 49 according,

to the depth of the 'well at the time of operation. The construction previously described is, however, preferred, as the operating-cables are also capable ofioeing used 'as the means for elevating and lowering the drill spirit or sacrificing any members in removing the same from the Well or vlowering the same into the well.

From the foregoing description it will be seenthat the inner rotary drill member may have' imparted thereto a reciprocatory movement or not, as may be-prefer'red; also-that the' inner and outer drill members are simultaneously reciprocated in opposite directions by means of independent cables and operating connections therefor and that the same cables which are used to aetuate the-drill members are also employed to raise and lower the said drill members at any time during the drilling-of a Well. l

From the foregoing it isv thought that the construction, operation, and many advantages of the herein-described invention will be apparent to those skilled-in the art Without further description, and it will be understood Vthat various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the of the advantages of the invention.

Having thus described my invention,what

I claim-as new, and desire to secure by Letters Patent, is-.

1. .In a drilling-machine, a duplex drill consisting of inner and outer concentric drill members, in combination with mechanism for simultaneouslyimparting a re'ciprocatory movement only to one drill memberand a combined rotary and'reciprocatory motion to the other drill member;

2. In a drilling-machine, a duplex drill consisting,r of innerand outerconcentric drill members, in combination'with mechanism for simultaneously imparting a combined reciprocatory and rot-ary motion to the inner drill member, and a reciprocatory movement only to the outer drill member.

3. In a drilling-machine, outer and inner concentric drill members, in combination with ymechanism for simultaneously imparting rotary motion to the innerdrill'member and reciprocator-y motion only to .the outer drill member, the outer drill member having a guide-sleeve throughwhich-the shaft of the inner drill member passes, and an enlarged jacket inl which works the cutting head orbit ofthe inner drill member. i

v4. In a drilling-machine, outerandnner concentric drill members,in combination with mechanism for simultaneously imparting m0- tion to thedrill members indifferent ldirections, said mechanism comprising independent cables connected respectively to therinner and outer drill members, and operating means for said cables. v

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-5. In a drilling-machine, the combination '.with inner and outer drill members, of a Walking-beam operatively connectedto both of said members to reciprocate them simultaneously in opposite directions, and meansV for operating thewalking-beam.`

6. In a drilling-machine, outer and inner concentric drill members,in combination with mechanism for simultaneously im parting niotion to the drill members in different directions, the said mechanism comprising a walking-beam, cables connected with said walking-beam, and also with the drill members, and an operating-shaft for actuating the walking-beam.

7. In a drilling-machine, the outer and inner concentric drill members, in combination with mechanism for simultaneously imparting motion to the drill members in different directions,said mechanism comprisinga walking-beam, means for driving the walkingbealn, and cables connected with the drill members and having an adjustable connection with the walking-beam.

8. In a drilling-machine, outer and inner concentric drill members, in combination with mechanism for simultaneously imparting motion to the drill members in different directions, a walking-beam, a driving-shaft for actuating the walking-beam, a drum, a cable wound thereon and connected to one of the drill members, means actuated by the driving-shaft for rotating said drum, and clutch mechanism for throwing the drum-actuating device into and out of operation.

9. In a drilling-machine, outer and inner concentric drill members,in combination with mechanism for simultaneously imparting motion to the drill members in dilerent directions, said mechanism comprising operatingcables connected to the drill members, and a bail connected with the outer drill member to provide for the attachment of one ofthe cables thereto.

10. In a drilling-machine, outer and inner concentric drill members, and a swivel-head connected to the shaft of the inner drill member, in combination with mechanism for simultaneously imparting motion to the drill members in diti'erent directions, said mechanism comprising cables, one of which is connected to the swivel-head on the shaft of the inner member, and the other toa bail on the outer member.

11. In a drilling-machine, the combination With inner and outer drill members, of operating mechanism common to said members for effecting their sim ultaneous reciprocation in opposite directions to cause said members to strike alternate thrust blows during the drilling operation.

12. In a drilling-machine, the combination with inner and outer drill members, of operating means common to said members for effecting their simultaneous reciprocation in opposite directions and for rotating the inner drill member.

13. In a drill, the combination with inner and outer drill members, of mechanism for rotating the inner drill member only and for effecting the .simultaneous reciprocation of the inner and outer drill members in opposite directions, whereby the unsupported walls of the cavity will be broken down by the outer drill member after the inner drill member has been Withdrawn from said cavity.

14. In adrilling-machine, the combination with inner and outer drill members, of a walking-beam, a cable connected lto the walkingbeam at one side of its fulcrum and extended directly to one of the drill members, a sheave located beyond the end of the other drill member, a second cable connected to the walking-beam and passed around the sheave for connection with the last-named drill member, and means for oscillating the Walkingbeam to eifect the simultaneous reciprocation of the drill members in opposite directions.

15. In a drill, the combination with inner and outer drill members, of a walking-beam operatively connected to said drill members to edect their simultaneous reciprocation in opposite directions, and means for imparting a rotary movement to one only ofthe drill members during the reciprocation thereof.

16. In a drill, the combination with inner and outer drill members, of a walking-beam operatively connected to said drill members to effect the simultaneous reciprocation thereof in opposite directions, and driving mechanism disposed to effect the rotary movement of one only of the drill members and to oscillate the walking-beam.

17. In a drill, the combination with inner and outer drill members, of a walking-beam operatively connected to said members to effect their simultaneous reciprocation in opposite directions, a beveled pinion mounted on one of said drill members to rotate said member,buthavingsliding engagement therewith, a driving-shaft geared to said beveled pinion, and mechanism geared to said driving-shaft and operatively connected to the walkingbeam to oscillate the latter.

18. In a drill, the combination with inner and outer drill members, of a Walking-beam connected to said drill members to effect their simultaneous reciprocation in opposite directions, a driving-shaft, gearing interposed between the driving-shaft and one of the drill members to effect therotary movement of the latter, a counter-shaft geared to the drivingshaft, and a link eccentrically connected to the counter-shaft and having an operative connection with the walking-beam.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

DANIEL WARNER.

Witnesses:

R. D. STRANG, F. N. RUDD.

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